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Loans and ACL - Summary of TLMs (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($) Loan	Mar. 31, 2024 USD ($) Loan
Loans and Leases Receivable Disclosure [Line Items]
Modified term extension and deferral loan units | Loan	2	0
Recorded Investment | $	$ 2,165	$ 0
Term extension and Forbearance [Member]
Loans and Leases Receivable Disclosure [Line Items]
Modified term extension and deferral loan units | Loan	1	0
Recorded Investment | $	$ 2,024	$ 0
Interest Forgiveness [Member]
Loans and Leases Receivable Disclosure [Line Items]
Modified term extension and deferral loan units | Loan	1	0
Recorded Investment | $	$ 141	$ 0
Commercial and Industrial [Member] | Term extension and Forbearance [Member]
Loans and Leases Receivable Disclosure [Line Items]
Modified term extension and deferral loan units | Loan	1	0
Recorded Investment | $	$ 2,024	$ 0
Recorded Investment of Modified Loans to Gross Loans by Category	0.60%	0.00%
Residential [Member] | Interest Forgiveness [Member] | Real Estate [Member]
Loans and Leases Receivable Disclosure [Line Items]
Modified term extension and deferral loan units | Loan	1	0
Recorded Investment | $	$ 141	$ 0
Recorded Investment of Modified Loans to Gross Loans by Category	0.02%	0.00%

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
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-URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A

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-Section 50
-Paragraph 42
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-Publisher FASB
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-Topic 310
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